Reventi-Arrecti. 163 
Ufe zone. This is the extreme variation of the species caused by aridity 
and hot climate. But all these forms intergrade from one to the other 
as you go south. 
_ Astragalus arrectus var. scaphoides Jones Cont. 7 664 (1895). A. 
scaphoides Jones A. scophioides Rydberg. This is a form with the coria- 
ceous pods truncate below, oblong, about 2 cm. long and 1 cm. wide and 
3 mm. high, much obcompressed and rather sulcate at both sutures, 
the dorsal suture intruded nearly to the ventral as a thick partition. 
stipe stout and about half as long as pod. Calyx tube short-cylindrical, 
about 4 mm. long and the teeth a fourth as long. Peduncles about a 
foot long and racemosely flowered. Leaves about 1.5 dm. long. Leaf- 
lets about 10 pairs, elliptical, smooth above. Stems very coarse 
and stiff, about 2 ft. high. Clark’s Canon, Beaver Head Co. Montana. 
Middle Temperate life zone. This is known only from one specimen 
and may be only a robust form of the var. Kelseyi. Forms from 
Weiser Idaho connect this with the type. 
118. Astragalus Cimz N. Sp. Low and rather coarse. The proper 
stems rarely 1 dm. long, with short internodes, large and hyaline sti- 
puies and long lanceolate bracts and few flowers in a head and short- 
ly racemose pods in fruit and on peduncles shorter than the leaves. 
Tufted stems from a woody root and zigzag and decumbent. Leaves 
almost sessile, about 1 dm. long, of about 10 pairs of oval-obovate and 
slender-petiolulate leaflets, 1 cm, long which are rounded or retuse, and 
smooth and flat and leathery. Flowers not seen but evidently large 
and ascending. Pods very fleshy, probably 2 mm. thick when fresh, fine 
ly cross-veined and wrinkled, much arcuate and with deflexed tip, stout 
and triangular with ventral suture concave except at the very convex 
tip, much laterally flattened and broadly sulcate at both sutures and 
with rounded sides, about 2 cm. long. 1 cm. wide and 5 mm. thick, the 
body often arched in a half circle and set at right angles to the stout 
stipe which is 1 em. long, narrowly oblong to ovate, splitting through 
the ventral suture to stipe, the dorsal opening at tip and to the middle 
at least, somewhat inflated but apparently full of pulp. Both sutures 
intruded and the dorsal nearly to the other in the middle of the pod 
but not at all at the ends. The ventral suture very thick and somewhat 
raised when dry, the dorsal thin and raised. Cross section oblong. Col- 
lected by Mrs. Brandegee at Cima on the edge of Nevada near the 
Charleston Mts. 1915. ‘This reminds one of a Bolanderi, 
119 Astragalus vallaris Jones Cont. 10 59 1902) Pods with body 
4-5 cm. long, 1 cm. wide, and 5 mm. high, either abruptly acuminate or 
truncate at base, finely reticulated and cross-nerved, arched to about a 
third circle, oblong-ovate, with cartilaginous walls about 2 mm. thick 
when fresh, with stipe 2 cm. long, the base of pod ending in a very 
thick obconic beak-like straight stipe taperiug into the calyx which be- - 
ing a little reflexed brings the body of the pod about horizontal and 
the tip nearly erect, general outline of pod lanceolate-oblong with tip 
flattened and 2-3 times as long as wide and only slightly declined. 
Flowers white, about 2cm.long. Banner gently arched to 45 degrees 
2 mm. beyond the calyx tips, lanceolate, with sides reflexed 1 mm. wide 
above the middle and making the blade seem very narrow above. The 
wings are linear, 2 mm. wide, fully 2 mm. longer than keel, narrowed 
at tip, a little ascending. Keel gently rounded from the base to the 
erect tip which is blunt, 7 mm. long, purple, about as in A. amphioxys. - 
Calyx about 5 mm. long, obliquely inserted, with subulate teeth about 
as long as tube. Fruiting pedicels very stout, about 3 mm. long, as- 
cending. Peduncles in the lower axils only, asin A. crassicarpus, slen- 
der, hardly 1 dm. long, with the few pods short-spicate on a rachis 
hardly half the peduncle. Bractsand stipules small and acuminate. | 
Leaflets with a shortly-cuneate base, contiguous, at least a third as 
wide as long, with the proper petiole hardly half as long as the adjoin- - 
ing leaflet, and the leaf rachis tapering, green-striped and widely | 
